When Nobita feels like diving in his hometown, Дораэмон uses Underwater насос Simulator (架空水面シミュレーター・ポンプ?) to насос all the water to fill up water. That night, Дораэмон and Nobita use a Diving Mask Simulator to dive underwater. Later on, lots of fish, and a акула attack Дораэмон and his friends. So, Дораэмон puts a stop on the Underwater насос Simulator, but there is a girl named Sophia, lay down on the bushes in his town.